This dialog has a number of (know) problems, but they will be solved
quickier if the dialog box resides in CVS (it compiles only with the
DEBUG version). And even with these problems, the dialog box is
usable :)

The main changes between this version and the last version (not
commited to CVS) is that now this dialog box is modeless (the
modeless code of this dialog box doesn't work 100% correctly, but I
have to sleep and study :), all the strings are i18n, and light
changes to the GUI.

Kudos to Martis and Bruce for the modeless work.

I've changed a bit the base class of the modeless dialogs, and now
there is no need to specify runModal, useStart, useStop, ... saving
a lot of typing in the derivated classes. I've changed Insert symbol
and Word count to use these changes.

I hope that the windows version will be compilable after this change,
but I can not verify it.